The following data represent the annual salaries (in thousands ofdollars) of twelve employees at a small business:24 22 38 24 32 49 110 71 50 45 33 35a) Determine the mean and the standard deviation for these data (no workneeded). Round to two decimal places as needed.Mean _______________ Standard Deviation ________________b) What statistic is the best measure of center and spread to describe the resultsof the data above?Center _______________ Spread __________________

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Asked Sep 25, 2019
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The following data represent the annual salaries (in thousands of
dollars) of twelve employees at a small business:

24 22 38 24 32 49 110 71 50 45 33 35

a) Determine the mean and the standard deviation for these data (no work
needed). Round to two decimal places as needed.
Mean _______________ Standard Deviation ________________

b) What statistic is the best measure of center and spread to describe the results
of the data above?
Center _______________ Spread __________________

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Expert Answer

Step 1

The provided data which represents the annual salaries of twelve, n employees is,

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24,22,38, 24,32,49,110,71, 50,45,33,35

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Step 2

(a) The mean can be obtained as:

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ΣΧ 24 22+ 33+35 12 533 12 = 44.42

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Step 3

The standard deviation ca...

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77 Σ(x-3) _ -1 n-1 (24-44.42) +(22-44.42) 4 +(33-44.42)(35-44.42) 12-1 =24.88 Il b

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